Peat, first used about 2000 years ago, was important because ____
a. it produces a very high heat when burned
b. it can be used while still wet
c. its low burning heat can be used as an energy source
d. it is found in desert-like areas
C
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What happens when we place gears too close or too far apart?
What will be an ideal response?
What controls biological growth in the tower and in circulating water?
A. pH B. Biocides C. Dispersants D. Corrosion inhibitors
A(n) ____________________ is a refrigeration system that is designed to maintain a temperature lower than 32°F in a refrigerated case.
Fill in the blank(s) with the appropriate word(s).
Which two European powers were locked in competition for influence in Central Asia in “the Great Game”?
a. France and Germany b. Great Britain and France c. Great Britain and Russia d. Russia and Germany